Siemens v Danalogic : The Playoff

Last week, the very nice and very helpful senior audiologist at clinic O gave me two sets of hearing aids to compare, to see which works best for my dubious activities outwith the soundproofed room. Hearing aid No. 1 is my original Siemens Chroma S, and hearing aid No. 2 is the newer Danalogic i-FIT 71. The Danalogic had originally been given the heave-ho after its first fitting, because of the intolerably loud circuit noise which was being picked up by the hiss-sensitive cookie bite ears. It has since been slightly de-hissed, and is being given a second chance to see whether the benefits of slightly better overall sound quality outweigh the downside of listening to digital tinnitus all day long.

At the weekend, I decided to blow the dust off the piano, in order to subject both aids to a rigorous and highly scientific test of their music handling capabilities. Using every ounce of my musical talent, I wrote a technically challenging composition, designed to put silence to the test every bit as much as sound. The opening sequence invites the pianist to channel the spirit of John Cage while the Delayed Startup beeps of the i-FIT 71 count down to Power On. The climax of the piece, in bars 6-8, involves a technically demanding sequence of three triad chords in a row, situated right in the middle of the cookie bite zone, a notorious spot for over-amplification in the past.

All that was missing was a functional MRI scan to find out what was going down in the Cookie Bite Auditory Cortex while all this was going on, but who needs a £100,000 scanner when you’ve got a nice sharp HB pencil to to draw what you’re hearing instead.

The results show that, on music, the Danalogic is the clear winner. It hissed its way consistently through the test from start to finish,  but there was no great distortion of sound, just louder hissing when notes are sounded. The Siemens, on the other hand, was nice and quiet on silence, but couldn’t resist creating a musical accompaniment all of its own to the piano. This consists of a gentle rattling noise on notes lower than C3, and random chirps and beeps everywhere else. The keys between G5 and B5 remain scarily loud and have to be approached with extreme caution.

Winner of the Piano Playoff Test: The Danalogic i-FIT 71.

Coming up next: The Mumbling Student Test. Will the Chroma S fight back?

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2 Responses to “Siemens v Danalogic : The Playoff”


  1. 1 Rose May 5, 2012 at 2:32 pm

    I think I have played an arrangement of that piece for 2 descant recorders and a Phonak FM system.

    • 2 moiradancer May 7, 2012 at 3:00 pm

      Ouch! Even unaccompanied by amplification, the recorder and small child are a potentially deadly acoustic combination. I was forced to secretly stuff the inside of my recorder with toilet paper the last time the nieces were round.


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